split decoder-specific parts into their own file

Originally committed as revision 9533 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/Makefile

@@ -48,7 +48,7 @@ OBJS-$(CONFIG_BETHSOFTVID_DECODER)     += bethsoftvideo.o
 OBJS-$(CONFIG_BMP_DECODER)             += bmp.o
 OBJS-$(CONFIG_BMP_ENCODER)             += bmpenc.o
 OBJS-$(CONFIG_C93_DECODER)             += c93.o
-OBJS-$(CONFIG_CAVS_DECODER)            += cavs.o cavsdsp.o golomb.o
+OBJS-$(CONFIG_CAVS_DECODER)            += cavs.o cavsdec.o cavsdsp.o golomb.o
 OBJS-$(CONFIG_CINEPAK_DECODER)         += cinepak.o
 OBJS-$(CONFIG_CLJR_DECODER)            += cljr.o
 OBJS-$(CONFIG_CLJR_ENCODER)            += cljr.o

libavcodec/cavsdata.h

@@ -59,22 +59,6 @@ const uint8_t ff_cavs_partition_flags[30] = {
 
 const uint8_t ff_cavs_scan3x3[4] = {4,5,7,8};
 
-static const uint8_t mv_scan[4] = {
-    MV_FWD_X0,MV_FWD_X1,
-    MV_FWD_X2,MV_FWD_X3
-};
-
-static const uint8_t cbp_tab[64][2] = {
-  {63, 0},{15,15},{31,63},{47,31},{ 0,16},{14,32},{13,47},{11,13},
-  { 7,14},{ 5,11},{10,12},{ 8, 5},{12,10},{61, 7},{ 4,48},{55, 3},
-  { 1, 2},{ 2, 8},{59, 4},{ 3, 1},{62,61},{ 9,55},{ 6,59},{29,62},
-  {45,29},{51,27},{23,23},{39,19},{27,30},{46,28},{53, 9},{30, 6},
-  {43,60},{37,21},{60,44},{16,26},{21,51},{28,35},{19,18},{35,20},
-  {42,24},{26,53},{44,17},{32,37},{58,39},{24,45},{20,58},{17,43},
-  {18,42},{48,46},{22,36},{33,33},{25,34},{49,40},{40,52},{36,49},
-  {34,50},{50,56},{52,25},{54,22},{41,54},{56,57},{38,41},{57,38}
-};
-
 const uint8_t ff_cavs_chroma_qp[64] = {
   0,  1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,
   16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,